/*
 *
 * Copyright (c) 2006-2020, Speedment, Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); You may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at:
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.speedment.runtime.core.util;

import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

import static org.junit.jupiter.api.Assertions.fail;

/**
 *
 * @author Per Minborg
 */
public class TestUtil {

    public static <T> void assertNonInstansiable(Class<T> clazz) {
        try {
            final Constructor<T> constructor = clazz.getDeclaredConstructor();
            try {
                constructor.setAccessible(true);
            } catch (RuntimeException e) {
                /*
                * This throws java.lang.reflect.InaccessibleObjectException.
                * Since the exception is available in Java 9+ and our tests
                * are still running on Java 8, catching a RuntimeException
                * will have to suffice for the time being
                * */
            }
            final T instance = constructor.newInstance();
            fail("The class " + clazz.getName() + " should not be instansiable");
        } catch (Exception e) {
            // Ignore
        }
    }

}
